best way to earn interest at extremely low risk

I have S$50000 for my BTO which will be completed in sep 2021. I
hope to invest it until my BTO completed, i can get it in cash.
What are the best way for now to earn maximum interest during these
period?

Fashion and beauty products have the highest volume of
transactions, but the category with the highest percentage of
transactions against listings is Electronics & Gadgets. Laptops
and tablets get sold very quickly, some in a matter of
minutes

Research for products on carousell with the most likes and look for
similar items on
www.aliexpress.com
and resell them on carousell.